Mechanical movement



Feb. 24, 1925. 1,527,311

` H. G. KITCHELL MECHANICAL uovnuzuw med May s, 1920 4 sheets-sheet 1 Ff@ z.

H. G. KITCHELL uEcHAnIcAL uovEMzINT Filed May' 5, 1920 4 Sheets-Sheet 2 Feb. 24, 1925. l 1527,31!

Feb. 24, 19'25.

1,527,31! H. G; KITCIHELL y MECHANICAL MOVEMENT Filed May 5, 1920 4 Sheets-Sheet J1- Patented Feb. 24, 1925.

* .UsNiTED T-ATES HORACE G. KITCHELL, O F' GREENWOD, MISSISSIPPI, ASSIGNOR TO DELTA MACHINE WORKS, OF GREEN WOOD,

MISSISSIPPI.

MECHANICAL MOVEMENT.

Application filed May 5, 1920. Serial No. 379,061.

To all whom z'tmag/ concern.'

Be it known that I, HORACE G. KITGHELL,

a citizenof the UnitedStates, residing at Greenwood, in the county of Leflore and State of Mississippi, have invented certain new and useful In'ip-rovements in Mechanical Movements, of which the following is a specification. y 4,

This invention relates to certain new and useful improvements in mechanical movements, and it has Afor its objects among others to'provide a new and useful' movew ment applicable; in many ways, to many uses and yamong which may be mentioned airships, automobiles, marine vessels, elevators, tools, shafting, or, infact, almost any and all positions and places and under almost all'conditions vwhere it is desired lto obtain greatly' increased speed. The improvement as hereinafter disclosed is capable of kuse in connection with shafting either line or angular and in cases where a multiplicity of'shafting is desirable or required.

It hasfor a further object to provide an improved movement ofthis general nature in which the parts shall be fewr in number, those compactly' arranged, readily assembled', or dissembled for repairs or other 30 purposes not liable' to getfout of order or become damaged and yet which shall be most efficient in operation. It is well adapted also for'use in auto-trucksv and the like` where great power is required kunder reduced speed.

Other objects and advantages of the invention' will hereinafter appear and the novel features thereof will `be particularly pointedout inlthe appended claims.

The invention is capable of embodiment in a variety of forms,for`varied uses, some of which only are herein illustrated.

The invention, in Vsuch preferred forms, is clearly illustrated in the accompanying drawings, which, withth'e numerals of referencev marked thereon, form a part of this specification, and in which- Figure l is afront elevation, with a portion broken away, showingone'lform of an embodiment. of myinvention. Figure 2 is a reverse View with the shaft in cross section.

Figure 3 is a rfront View with portions broken away, showing a modified form.

,Figure t is a vertical section on the line i4-4 of Figure l. 'Y

nels 12, in this instance Figure 5 is a fron-t face view of the main driven element removed from its casing.

Figure (i is an edge view thereof.

Figure T is a front view showing a 'modilied form of drive.

Figure 8 is a face view of the reverse side of the device, showing another form of drive.

Figure 9 is a substantially central section at right angles to the shafts, showing a still further forni of embodiment of the invention.

Figure l0 is a section,V as on the line l0-l0, of Figure 9, looking in the direction of the arrows with parts in elevation.

Like numerals of reference indicate like parts throughout the several views in which they appear.

In carrying out my invention, in the various forms, the saine generic principle is adhered to. This embodies a cooperative arrangement or disposition of what is known in the art as a trammel, and a system of gears of whatever form and arrangement l may choose, and means whereby the element carrying the blocks which travel in the radial grooves of the trammel mechanism is employed as the driving member. lVith this general understanding of my present invention, l will now proceed to describe the various forms of embodiment thereof, attention being irst directed to Figures l, 2, t, 5 and 6. in which l is a casing chambered, as at 2, to receive the operative parts and provided with a cap plate 3' secured thereto by bolts or other means et provided for ready access to the enclosed parts when necessary. he casing l is provided with a hub 5 and the cap plate 3 is provided with a coaxial hub 6, as seen best in Figure 4.

In the. form illustrated in Figures l, 2, ll. 5 and 6, 7 is a shaft. Carried by this shaft is a gear S, in this present instance shown as having a hub 9 fitted within a socket l() within the hub 5.

lithin the chamber 2 of the casing is the disc or trammel member il provided upon the one face with a plurality of radial chanshowny as four in number7 although this number may be varied Within any reasonable limit. These channels are undercut, as shown in Figure (i, as

is usual in this class of devices and designed to travel therein are blocks 13 pivotally mounted upon suitable 1neans,"as the screws f1 Il 111-, in the disc 15 fast upon which iS. agear 16 having an axial opening 17 which is adapted to receive a pin 18 fixed in the front wall of the casing 1, as seen clearly in Figure 4.

lly reason of the blocks 13 being pivotally mounted on the disc 15 they act as levers against the gear 16, and as one block is being actuated by the disc 11 at its periphery, its mate, that is the other block, is passing the center of the disc 11 without resistance, and by reason of the lever action and the greater rapidity of motion of the block at the center I obtain a differential motion, not a planetary motion, as the pin 18 will prevent any planetary motion, although the benefits derived are substantially the same as derived from a planetary motion and the two shafts are kept in perfect alinement without which such differential motion could not be obtained.

These parts are all arranged within the easing 1 and the cap 3 is then applied, by preference the parts being designed to run in oil for an obvious purpose. The number 11 is shown as provided with a hub 19 in which is fired a shaft 20, as shown in Figure 4, designed to be revolved from any suitable source of power,'not shown.

rihe operation of this form is as follows: motion being imparted to the shaft 20 from any suitable source, the revolution of this shaft imparts positive rotary motion to the member 11, and as this member is revolved it imparts rotary motion to the disc 15 and its gear 16, through the medium of the radial rhannels and the blocks of the trammel, as will be readily understood. It is desired to state here, however, that during the revolution of the member 11 the disc 15 and its gear 16 remain relatively stationary, that is, as to position within the casing, or, in other words, the disc 15 and tho gear 16 do not have a planetary movement. Revolution of ibo disc 15 andgear 16, however, by reason ol' the interengagement of the gear 16 with' the gear 8 on the shaft '2 imparts rotary .motion to the latter. However', by this arrangement of parts, the gear 16 will be given wo roniplete revolutions to one revolution of the shaft 20, that is with four radial grooves of the trammel, but if a greater number of grooves is employed the number of relative revolutions of the disc 8 will be proportionately increased, this being accomplished by reason of the radial movement and the fact that the gear 16 is not planetary.

s hereinbefore stated, this generic prin-V ilple may be embodied in a variety of forms, the variations being mainly as to the drive. F or instance, in Figure 3 l have shown, in lieu of the two intermeshing gears 8 and 16, a sprocket wheel 21 on the shaft 7 and a fprorket wheel 22 on the stud or pin' 18, the tivo sprockets being connected by means of a sprocket chain 23, whereby revolution of the disc 15 imparts rotary motion to the shaft 7, the remainder of the device being the same as hereinbefore described in connection with Figure 4, except that the shafts and' 20 in Vthe form shown in--Figure 3 revolve in the same direction instead of in reverse directions as in Figure 4.

,in Figure 7 the disc 24, which is the equivaient of the disc 11Ain the forms hereinbefore described, is toothedperipherally, as seen at 25, and meshing with this toothed periphery is a worm 26 carried by a shaft 27 designed to be revolved from any suitable source of power, it being understood that this shaft and its worm is the equivalent of the shaft 2O in Figure 4 and serving to drive the disc 11, the other parts being the same construction and arrangement as shown in Figure 4. y

The disk 11 or its equivalent member 28 shown in Figure 8, may be provided with an internal gear '29 with which meshes the gear30 :arried by a shaft 31 driven b any suitable source of power, not shown. evolution of the gear 3() by its engagement with the internal gear 29, serves to rotate the disc 28 in the same manner4 as the shaft 20 Vrotates the disc l1vin Figure 4.

The disc which constitutes the driving member of the device may, in some instances, be Vprovided with an internal gear 32 just inside of its periphery,as seen in Figure 4, with which may be caused to engage a pinion similar to the pinion shown in Figi'ne 8, and, in some instances, this disc may be providedwith an internal gear 33 about the axis of the disc, as shown in Figure 4, withwhich also mayengage a pinion or gear for a like purpose. Either one or both of these may be used, as circumstances may require.

As shown in Figures 9 and 10, the disc 34, which is the equivalent of the disc 11 in Figure 4, may be provided with a peripheral bevel gear 35 with which meshes a bevel gear 36 carried by a shaft 37, the equivalent of the shaft 20 in Figure 4, and revolved from any Vsuitable source of power, not shown. It is to be understood that the disc 15, with its gear 16 and its blocks 13, `engaged in radial 'grooves in the disc, are all employed the latter being carried by a shaft 43 to which rotary motion is imparted, as will be under stood. 1n thislatter form, the two shafts 43 and 44 are revolved in the same direction. It is to be understood that in all of the forms the disc and its associated parts are enclosed Within a suitable casing such as that described in connection with Figure 4.

From the foregoing, it will be clearly understood that I have devised a. simple and efficient mechanical movement, the generic feature of which is capable of embodiment in a multiplicity of forms, and While these structural embodiments of the invention which are herein disclosed are What I at the present time consider preferable. it will be clear that the same is subject to changes, variations and modifications in detail, proportion of parts etc.. without departing from the spirit of the invention or sacriicing any of its advantages. I. therefore, do not intend to restrict myself to the precise con-- struction herein shown` described and claimed, but reserve the right to make such changes, variations and modifications as come properly Within the scope of the protection prayed.

lilhat is claimed as nev is l. A reduction gear comprising a trammel element having slots, a second trammel element arranged to be rotated thereby, a gear element carried by the latter and rotatable therewith, a shaft coaxial With the first-named trammel element, a gear element movable therewith and cooperating With the first-named gear element, a casing, and means thereon for supporting the driven shaft and the second-named trammel element.

2. A reduction gear comprising a trammel element having slots, a second trammel element arranged to be rotated thereby and provided on one of its faces with a gear element, a shaft coaxial With the first-named traniniel element having a gear element cooperating With the first-named gear element, antL a casing for said mechanism comprising a base plate having a journal bearing for the shaft of the first-named trammel element, a cover plate having a gudgeon pin to support the second trammel element and its gear element, and a ournal for the driven shaft.

in testimony whereof l aiiix my signature.

HORACE G. KITCHELL. 

